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[Z06] valve springs for ferrea hollow stem valves

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Old 12-04-2013, 08:56 PM
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jconnors316
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Default valve springs for ferrea hollow stem valves
What are the best valve springs if Ferrea hollow stem exhaust valve are used ? .
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Old 12-04-2013, 09:32 PM
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VetteVinnie
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Originally Posted by jconnors316
What are the best valve springs if Ferrea hollow stem exhaust valve are used ? .
I am using the Katech PSI springs, titanium retainers and their seats for the bronze guides with mine.
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Old 12-04-2013, 09:39 PM
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Exactly this ^^^
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Old 12-04-2013, 09:55 PM
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What is the part number of the hollow stem SS exhaust valve manufactured by Ferrea? Where did you guys purchase them? Thanks in advance…
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Old 12-04-2013, 10:10 PM
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Originally Posted by troy6166
What is the part number of the hollow stem SS exhaust valve manufactured by Ferrea? Where did you guys purchase them? Thanks in advance…
F2042P
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Old 12-04-2013, 10:15 PM
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Originally Posted by MTPZ06
F2042P
Thanks!
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Old 12-04-2013, 10:31 PM
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DaOtherOne
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Originally Posted by EViL427
I am using the Katech PSI springs, titanium retainers and their seats for the bronze guides with mine.
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Old 12-04-2013, 10:36 PM
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briancb1
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Originally Posted by jconnors316
What are the best valve springs if Ferrea hollow stem exhaust valve are used ? .
Surprised I'm first to ask... What's your current application?

Does your engine have an aftermarket cam? If so, what did the cam manufacture recommend?
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Old 12-04-2013, 11:40 PM
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Originally Posted by briancb1
Surprised I'm first to ask... What's your current application?

Does your engine have an aftermarket cam? If so, what did the cam manufacture recommend?
Perhaps no one asked because it's irrelevant? If he's changing valves, he certainly wouldn't stay with the stock springs, or, heaven forbid, outdated dual-spring technology.
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